18884575

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{479}}^1$

素因数の和:591

約数の個数: 24

約数和(自身を含む): 24998400

約数和(自身を除く): 6113825

約数列:

[1, 5, 19, 25, 83, 95, 415, 475, 479, 1577, 2075, 2395, 7885, 9101, 11975, 39425, 39757, 45505, 198785, 227525, 755383, 993925, 3776915, 18884575]

約数ペア:

[(1, 18884575), (5, 3776915), (19, 993925), (25, 755383), (83, 227525), (95, 198785), (415, 45505), (475, 39757), (479, 39425), (1577, 11975), (2075, 9101), (2395, 7885)]